In message , druck 
writes
>All my other vintages of Pi from 256MB Pi B upwards, including the 2Bs
>are using the HTU21DF sensor (also much better than the HT22). They are
>just temperature and humidity, no pressure, but you can them for about
>a fiver on ebay, so may be more suitable for that Pi if you can't get
>the BME280 to work.
>

To be honest, I only record the pressure from the weather station Pi.
However standardising on one sensor type makes sense (even if I'm not
using all of its functionality).  Code reuse is one reason, and if it
fails (I've had one fail), I'm more likely to have a spare.

Adrian
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